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<TITLE>Magic-7.3 Command Reference</TITLE>
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<H1> <IMG SRC=graphics/magic_title2.gif ALT="Magic VLSI Layout Tool Version 7.3">
     <IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>

<H2>crashbackups</H2>
<HR>
Handle periodic backups during a layout editing session.
<HR>

<H3>Usage:</H3>
   <BLOCKQUOTE>
      <B>crashbackups </B>[<B>start</B>|<B>stop</B>] <BR><BR>
   </BLOCKQUOTE>

<H3>Summary:</H3>
      The <B>crashbackups</B> procedure enables or disables the
      periodic saving of crash recovery backup files.
      <B>crashbackups</B> or <B>crashbackups start</B> sets the
      timer for the first periodic save.  After the timer times
      out, backup file is generated and written in the system
      temporary directory, and the timer is reset.  By default,
      the backup interval is 10 minutes (600000 msec).  The
      interval can be changed by setting the value of Tcl variable
      <B>$Opts(backupinterval)</B> to the interval value in msec. <BR><BR>

      <B>crashbackups stop</B> removes the timer callback and thus
      prevents further writing of backup files.  Note that if
      crash recovery is stopped or started multiple times during
      a session, the same filename is used to save the data.
   </BLOCKQUOTE>

<H3>Implementation Notes:</H3>
   <BLOCKQUOTE>
      <B>crashbackups</B> is implemented as a Tcl procedure in the
      "tools.tcl" script file.  It calls the magic command
      "<B>crash save</B>".
   </BLOCKQUOTE>

<H3>See Also:</H3>
   <BLOCKQUOTE>
      <A HREF=crash.html><B>crash</B></A> <BR>
   </BLOCKQUOTE>

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<P><I>Last updated:</I> December 7, 2005 at 3:15pm <P>
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